GeForce GTX 660 Direct CU II OC Edition is a special edition of GeForce GTX 660. The new features include DirectCU II cooling solution which, according to Asus, is 20% more effective than the standard/reference cooler. In terms of overclocking, the base-clock was increased from 980MHz to 1020MHz and the boost clock can now reach 1085MHz, instead of 1033MHz. The memory clock was left untouched. Benchmarks indicate a 4% performance boost when compared to the reference card.

your current motherboard would be fine with this card no worries even if its only pci express 2.0 and this cards 3.0 for example itll run fine it doesnt make much difference this cards pretty good its my old card

it will not bottleneck at all espeically not with this card ignore him he doesnt know what bottlenecking is apparently and hes not a smart intel fanboy ether even though i personally prefer intel youll be good

this use to be my old card and youtube jayztwo cents bottlenecking watch his video youll know how much it takes to bottleneck a gtx 680 it cook a core i3 at 3.1ghz i think on ultra resolution on bf 3 on a 64 player map to drop frames down

some games yes it will with graphics cranked up fully most games no youll be fine and if it bottlenecks the effects will not be notice youtube jayztwo cents bottleneck it will show you what it takes to make a bottleneck